Brachiopod -

They are benthic (sea-floor dwellers) and sessile (permanently attached to the seafloor), generally filter-feeding.

They use a specialized organ called a lophophore , a coil-shaped tentacle structure, to trap food, rather than gills. brachiopod

They were the most common shelled macroinvertebrates in the Paleozoic era. a coil-shaped tentacle structure

Here is a review of their significance, biology, and fossil record. 🌟 Key Takeaways to trap food